.appTransiton-enter-active,
.appTransiton-leave-active {
    transition: all 1.2s ease;
    overflow: hidden;
    visibility: visible;
    opacity: 1;
}

.appTransiton-leave-active {
    display: none;
}

.appTransiton-enter,
.appTransiton-leave-to {
    opacity: 0;
    visibility: hidden;
}
